If you’ve just bought an EV, one of the most impactful — and most overlooked — money moves is checking whether your home electricity plan is actually built for EV charging. The difference between a standard residential rate and a dedicated EV plan can add up to hundreds of dollars a year, and unlike most energy-saving advice, this one requires essentially no behavior change beyond plugging in at the “right” time.
The Core Fact: Home Overnight Charging Wins by a Huge Margin
Roughly 90% of EV charging happens at home overnight, according to industry analysts, and for good reason — it’s consistently the cheapest way to charge, especially compared to public fast charging. As a rough benchmark, charging a typical 60-80 kWh EV battery at home costs around $10-$15 in electricity, while getting the same amount of energy from a public DC fast charger typically costs $30-$45 — roughly three times as much.
That gap alone makes home charging the default best strategy for most EV owners. The next question is simply which home rate plan gets you the lowest overnight price.
How Much Home Charging Costs Varies Enormously by State
Average residential electricity rates differ dramatically across the country — as of mid-2026, states like New Hampshire were paying around 27 cents/kWh, roughly double what states like Louisiana were paying at around 13.5 cents/kWh. This means the value of switching to a dedicated EV rate plan is even more significant in high-rate states, where the gap between peak and off-peak pricing tends to be widest.
Real Utility EV Plans Worth Knowing About
A growing number of utilities now offer rate plans specifically designed around EV charging, rather than expecting EV owners to use a standard residential or generic time-of-use plan.
PG&E’s EV2-A (California)
PG&E’s dedicated home-charging plan prices electricity lowest from midnight to 3 PM every day, including weekends — a notably wide off-peak window compared to standard TOU plans. For EV owners who can reliably charge overnight, EV2-A has been shown to save around $50 a month (roughly $600/year) compared to sticking with a standard time-of-use or tiered plan. The plan does carry a base daily service charge, and switching requires self-certifying that you own or lease an EV (PG&E doesn’t verify this against DMV records, but plan design assumes genuine EV ownership). One caveat: the “best plan” ultimately depends on your entire household’s usage pattern, not just your EV — a household running significant AC or other high-draw appliances during the day may see different results than the averages suggest.
SCE’s TOU-D-PRIME (California)
Southern California Edison’s EV/electrification-focused plan mirrors the same peak window (4-9 PM) as its standard TOU plans, but offers lower per-kWh rates in exchange for a higher fixed daily charge and no baseline usage credit — making it a better fit for households using more energy overall, including EV charging, rather than very low-usage homes.
APS EV Overnight Charging Plan (Arizona)
Arizona Public Service offers a dedicated overnight EV charging plan with off-peak pricing from 11 PM to 5 AM on weekdays, plus an even deeper “super off-peak” discount from 10 AM-3 PM on weekdays during winter months — useful for households that can also shift daytime appliance use (laundry, dishwashers, pool pumps) into that window.
Other utilities
Many other utilities across the country — including several serving the Southeast, Midwest, and Pacific Northwest — have introduced or expanded EV-specific rate plans in recent years as EV adoption has grown. If your utility isn’t listed here, it’s worth checking directly, since dedicated EV plans have become far more common than they were even a couple of years ago.
What to Watch for Before Switching to an EV Plan
- A higher fixed daily/base charge. Many EV-specific plans trade a lower per-kWh off-peak rate for a higher flat daily fee — worth confirming this doesn’t outweigh your actual savings if your usage is modest.
- A narrow off-peak window. Some plans offer great rates only very late at night (say, 11 PM-5 AM), which may not align with a full overnight charge cycle depending on your charger’s speed and your car’s battery size.
- Restrictions on switching back. Some utilities (including PG&E) limit how many times you can change rate plans within a 12-month period — factor this in before switching, since undoing a poor choice isn’t always instant.
- Whether the plan actually fits your whole household, not just your EV — a plan optimized purely for EV charging can sometimes cost more overall if your home also runs heavy AC or other appliances during that plan’s peak hours.
Public Charging Costs for Comparison
For trips or when home charging isn’t an option, public charging costs vary significantly by network and charging speed:
- Tesla Superchargers are often among the more competitive DC fast-charging options, with off-peak pricing sometimes as low as 25 cents/kWh.
- Electrify America’s standard rate typically runs 48-56 cents/kWh for non-subscribers — noticeably more expensive, though subscription plans (often a few dollars a month) can reduce this significantly for frequent users.
- Most major automakers have now adopted the NACS charging standard, giving a growing number of non-Tesla EVs access to the Tesla Supercharger network, which has meaningfully expanded fast-charging options and competition in many areas.
How to Figure Out Your Best Plan
- Check whether your utility offers a dedicated EV rate plan — search “[your utility] EV rate plan” directly, since availability and plan names vary widely.
- Pull your actual usage data (via your smart meter portal, if available) rather than relying on averages, since your specific household’s daytime usage pattern significantly affects which plan wins.
- Use your utility’s EV savings calculator, if offered — PG&E, SCE, and several other major utilities provide tools that model your actual bill under different plans using your real usage history.
- Confirm your charger’s overnight completion time fits within the plan’s cheapest window — a narrow off-peak window is only valuable if your charging session actually finishes inside it.
Final Thoughts
For the large majority of EV owners, home charging overnight on a dedicated EV rate plan is dramatically cheaper than public charging — often a third of the cost or less. The specific plan that wins depends heavily on your utility, your state’s rate structure, and your household’s broader usage pattern, so the safest approach is running your actual numbers through your utility’s comparison tool rather than assuming a plan that worked well for someone else’s household will work the same way for yours.